you have had a heart attack, stroke, or life-threatening irregular heartbeat within the past 6 months

you have a history of a certain type of irregular heartbeat (eg, congenital QT prolongation) or you take certain antiarrhythmic medicines (eg, quinidine, procainamide, amiodarone, sotalol)

you are taking a nitrate (eg, isosorbide, nitroglycerin) in any form (eg, capsule, ointment, patch, tablet), or nitroprusside

you use certain recreational drugs called "poppers" (eg, amyl nitrate or nitrite, butyl nitrate or nitrite)

you take another PDE5 inhibitor (eg, sildenafil, tadalafil) or another medicine that contains vardenafil.

Contact your doctor or health care provider right away if any of these apply to you.

Some medical conditions may interact with Levitra. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement

if you have allergies to medicines, foods, or other substances

if you have a deformed penis (eg, cavernosal fibrosis, Peyronie disease), blood cell problems (eg, leukemia, multiple myeloma, sickle cell anemia), or any other condition that may increase the risk of a prolonged erection (priapism)

if you have a history of a prolonged (more than 4 hours) or painful erection (priapism)

This may not be a complete list of all interactions that may occur. Ask your health care provider if Extra Super Levitra may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

All medicines may cause side effects, but many people have no, or minor, side effects.

Check with your doctor if any of these most common side effects persist or become bothersome: